<template>
	<view class="preview">
		<swiper circular :current="currentIndex" @change="handleChangePreview">
			<swiper-item v-for="item in previewList" :key="item._id">
				<image @tap="maskChange" :src="item.previewUrl" mode="aspectFill"></image>
			</swiper-item>
		</swiper>
		<view class="mask" v-if="maskState">
			<view class="goBack" :style="{ top: getStatusHeight() + 'px' }" @tap="handleGoBack">
				<uni-icons type="back" color="#fff" size="20"></uni-icons>
			</view>
			<view class="count">{{ currentIndex + 1 }} / {{ previewList.length }}</view>
			<view class="time">
				<uni-dateformat :date="new Date()" format="hh:mm"></uni-dateformat>
			</view>
			<view class="date">
				<uni-dateformat :date="new Date()" format="MM月dd日"></uni-dateformat>
			</view>
			<view class="footer">
				<view class="box" @tap="tapInfo">
					<uni-icons type="info" size="28"></uni-icons>
					<view class="text">信息</view>
				</view>
				<view class="box" @tap="tapScore">
					<uni-icons type="star" size="28"></uni-icons>
					<view class="text">{{ currentImageInfo.score }}分</view>
				</view>
				<view class="box" @tap="tapDownImage">
					<uni-icons type="download" size="23"></uni-icons>
					<view class="text">下载</view>
				</view>
			</view>
		</view>


		<uni-popup ref="infoPopup" type="bottom">
			<view class="infoPopup">
				<view class="popHeader">
					<view></view>
					<view class="title">壁纸信息</view>
					<view class="close" @tap="handleInfoClose">
						<uni-icons type="closeempty" size="18" color="#999"></uni-icons>
					</view>
				</view>
				<scroll-view scroll-y>
					<view class="content">
						<view class="row">
							<view class="label">壁纸ID：</view>
							<text selectable class="value">{{ currentImageInfo._id }}</text>
						</view>
						<!-- <view class="row">
							<view class="label">分类：</view>
							<text selectable class="value class">{{ className || currentImageInfo.classname }}</text>
						</view> -->

						<view class="row">
							<view class="label">发布者：</view>
							<text selectable class="value class">{{ currentImageInfo.nickname }}</text>
						</view>

						<view class="row">
							<view class="label">评分：</view>
							<view class="value rateBox">
								<uni-rate readonly touchable :max="5" :value="currentImageInfo.score" size="16" />
								<text selectable class="score">{{ currentImageInfo.score }}分</text>
							</view>

						</view>

						<view class="row">
							<view class="label">摘要：</view>
							<text selectable class="value">{{ currentImageInfo.description }}</text>
						</view>

						<view class="row">
							<view class="label">标签:</view>
							<view class="value tabs">
								<view class="tab" v-for="item in currentImageInfo.tabs" :key="item._id">
									{{ item }}
								</view>
							</view>
						</view>

						<view class="copyright">
							声明：本图片来用户投稿，非商业使用，用于免费学习交流，如侵犯了您的权益，您可以拷贝壁纸ID举报至平台，邮箱513894357@qq.com，管理将删除侵权壁纸，维护您的权益。
						</view>
					</view>
				</scroll-view>
			</view>
		</uni-popup>
		
		<uni-popup ref="scorePopup" :isMaskClick="false">
			<view class="scorePopup">
				<view class="popHeader">
					<view></view>
					<view class="title">壁纸评分</view>
					<view class="close" @tap="handleScoreClose">
						<uni-icons type="closeempty" size="18" color="#999"></uni-icons>
					</view>
				</view>
				
				<view class="content">
					<uni-rate allowHalf v-model="userScore"/>
					<text class="text">{{ userScore }}</text>
				</view>
				
				<view class="footer">
					<button @tap="submitScore" type="default" size="mini" plain :disabled="!userScore">确认评分</button>
				</view>
			</view>
		</uni-popup>
	</view>
</template>

<script setup>
	import { getStatusHeight } from '@/utils/system.js'
	import { apiSetupScore, apiWriteDownload } from '@/api/preview/index.js'
	import {
		ref,
		computed
	} from 'vue'
	import { onLoad } from '@dcloudio/uni-app'
	import { getFileTempPath } from '@/utils/downLoad.js'
	const previewList = ref([])
	const currentIndex = ref(0)
	const maskState = ref(true)
	const infoPopup = ref(null)
	const scorePopup = ref(null)
	const userScore = ref(0)
	// 分类名称
	const className = ref(null)
	// 当前壁纸信息
	const currentImageInfo = computed(() => previewList.value[currentIndex.value])
	onLoad(({ id, name, type = '' }) => {
		className.value = name
		loadPreviewImages(type)
		currentIndex.value = previewList.value.findIndex(item => item._id === id)
		
	})
	
	const maskChange = () => {
		maskState.value = !maskState.value
	}
	const tapInfo = () => {
		infoPopup.value.open('bottom')
	}
	const handleInfoClose = () =>{
		infoPopup.value.close('bottom')
	}
	const tapScore = () => {
		userScore.value = 0
		scorePopup.value.open()
	}
	const handleScoreClose = () => {
		scorePopup.value.close()
	}
	const  submitScore = async () => {
		const { classid, _id } = currentImageInfo.value
		const result = await apiSetupScore({
			classid,
			wallId: _id,
			userScore:userScore.value
		})
		if(result.errCode === 0) {
			scorePopup.value.close()
			uni.showToast({
				title: '评分成功！',
				icon: 'none'
			})
		}
	}
	function handleGoBack () {
		uni.navigateBack()
	}
	
	const loadPreviewImages = (type) => {
		const storageKey = type ? 'reCommendImgList' : 'storeClassList'
		const previewData = JSON.parse(uni.getStorageSync(storageKey))
		previewList.value = previewData.map(item => {
			item.previewUrl = item?.smallPicurl.replace('_small.webp','.jpg')
			return item
		})
	}
	
	const handleChangePreview = ({ detail: { current = 0 } }) => {
		currentIndex.value = current
	}
	// 下载壁纸
	const tapDownImage = async () => {
		// #ifdef H5
		uni.showModal({
			content: '请长按保存壁纸',
			showCancel: false,
		})
		// #endif
		
		// #ifndef H5
		const { classid, _id:wallId } = currentImageInfo.value
		try{
			await apiWriteDownload({
				classid,
				wallId,
			})
		
		uni.showLoading({
			title: '下载中...',
			mask: true
		})
		getFileTempPath(currentImageInfo.value.previewUrl)
		.then(tempPath => {
			uni.saveImageToPhotosAlbum({
				filePath:tempPath,
				success: () => {
					uni.showToast({
						title: '保存成功，请到相册查看',
						icon: 'none'
					})
				},
				fail: (err) => {
					if(err.errMsg === 'saveImageToPhotosAlbum:fail cancel') {
						uni.showToast({
							title: '保存失败，请重新下载',
							icon: 'none'
						})
						return
					}
					uni.showModal({
						title: '授权提示',
						content: '需要授权才能保存到相册哦~',
						success: (res) => {
							if(res.confirm) {
								uni.openSetting({
									success: setting => {
										if(setting.authSetting['scope.writePhotosAlbum']) {
											uni.showToast({
												title: '获取授权成功',
												icon: 'none'
											})
										} else {
											uni.showToast({
												title: '获取授权失败',
												icon: 'none'
											})
										}
									}
								})
							}
						}
					})
				},
				complete: () => {
					uni.hideLoading()
				}
			})
		})
		}catch(e){
			//TODO handle the exception 
			uni.hideLoading()
		}
		// #endif
	}
</script>

<style lang="scss">
	.preview {
		position: relative;
		width: 100%;
		height: 100vh;

		swiper {
			height: 100%;
			width: 100%;

			image {
				height: 100%;
				width: 100%;
			}
		}

		.mask {
			&>view {
				position: absolute;
				left: 0;
				right: 0;
				color: #fff;
				margin: auto;
				width: fit-content;
			}

			.goBack {
				width: 38px;
				height: 38px;
				background: rgba(0,0,0,0.5);
				left: 30rpx;
				margin-left: 0;
				border-radius: 100px;
				top: 0;
				backdrop-filter: blur(10rpx);
				border: 1px solid rgba(255,255,255,0.3);
				display: flex;
				align-items: center;
				justify-content: center;
			}

			.count {
				top: 10%;
				margin: auto;
				background-color: rgba(0, 0, 0, 0.3);
				border-radius: 40rpx;
				padding: 8rpx 28rpx;
				backdrop-filter: blur(10rpx);
			}

			.time {
				font-size: 140rpx;
				top: calc(10% + 80rpx);
				font-weight: 100;
				line-height: 1em;
				text-shadow: 0 4rpx rgba(0, 0, 0, 0.3);
			}

			.date {
				font-size: 34rpx;
				top: calc(10% + 230rpx);
				text-shadow: 0 2rpx rgba(0, 0, 0, 0.3);
			}

			.footer {
				background-color: rgba(255, 255, 255, 0.8);
				bottom: 10%;
				width: 65vw;
				height: 120rpx;
				border-radius: 120rpx;
				color: #000;
				display: flex;
				justify-content: space-around;
				align-items: center;
				box-shadow: 0 2rpx rgba(0, 0, 0, 0.1);
				backdrop-filter: blur(20rpx);
				padding: 2rpx 12rpx;

				.box {
					display: flex;
					flex-direction: column;
					align-items: center;
					justify-content: center;

					.text {
						font-size: 26rpx;
						color: $text-font-color-2;
					}
				}
			}
		}
    .popHeader {
     	display: flex;
     	justify-content: space-between;
     	align-items: center;
     
     	.title {
     		color: $text-font-color-2;
     		font-size: 26rpx;
     	}
     
     	.close {
     		padding: 6rpx;
     	}
     }
     
		.infoPopup {
			background-color: #fff;
			padding: 30rpx;
			border-radius: 30rpx 30rpx 0 0;
			overflow: hidden;
			scroll-view {
				max-height: 60vh;

				.content {
					.row {
						display: flex;
						padding: 16rpx 0;
						font-size: 32rpx;
						line-height: 1.7em;
						align-items: center;

						.label {
							color: $text-font-color-3;
							width: 140rpx;
							font-size: 30rpx;
							text-align: right;
						}

						.value {
							flex: 1;
							width: 0;
						}

						.rateBox {
							display: flex;
							align-items: center;

							.score {
								font-size: 26rpx;
								color: $text-font-color-3;
								padding-left: 10rpx;
							}
						}

						.tabs {
							display: flex;
							flex-wrap: wrap;
							padding-left: 10rpx;
              align-items: center;
							.tab {
								border: 1px solid $brand-theme-color;
								color: $brand-theme-color;
								font-size: 22rpx;
								padding: 10rpx 30rpx;
								border-radius: 40rpx;
								line-height: 1em;
								margin: 0 10rpx 1rpx 0;
							}
						}

						.class {
							color: $brand-theme-color;
						}
					}

					.copyright {
						font-size: 28rpx;
						padding: 20rpx;
						background: #F6F6F6;
						color: #666;
						border-radius: 10rpx;
						margin: 20rpx 0;
						line-height: 1.6em;
					}
				}
			}
		}
	
	
	
	  .scorePopup {
			background: #fff;
			padding: 30rpx;
			width: 70vw;
			border-radius: 30rpx;
			.content {
				padding: 30rpx 0;
				display: flex;
				justify-content: center;
				align-items: center;
				.text {
					color: #ffca3e;
					padding-left: 10rpx;
					width: 80rpx;
					line-height: 1em;
					text-align: right;
				}
			}
			.footer {
				padding: 10rpx 0;
				display: flex;
				justify-content: center;
				align-items: center;
			}
		}
	}
	
</style>
